How to Use AutoZone Coupons. Click on the “My Cart” button when you are ready to checkout. Look for the “Enter Coupon Code” box on the right side of the screen. Enter your AutoZone coupon code in the box and click “Apply.”.
How do I use my AutoZone coupon code? Find the coupon you want to use for your order. Add the items you wish to buy to your virtual cart. Find the box that says "Enter Promo Code." Enter the AutoZone promo code and click "Apply" to see the savings in your cart.
Discount Coupons. Coupons are not valid with any other offers. Coupons must be used at the time of checkout and are not retro active to previous purchases.
At least in AZ, AutoZone has agreeded to not clear codes. There were automotive trade groups that claimed if they cleared codes that they would be in the business of auto repair. Had a check engine light come on on my brother’s Nissan Quest. (Same thing as a Mercury Villager) Was an O2 sensor code.